Protective sleeve for covering a 12-ounce regular mouth mason jar



FIG. 1 is a top, isometric view of a protective sleeve for covering a 12-ounce regular mouth mason jar showing my new design;

FIG. 2 is a bottom isometric view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof. 

CLAIM The ornamental design for a protective sleeve for covering a 12-ounce regular mouth mason jar, as shown and described. 